feap 
  0 0 0 2 4 4 

param
  n = 10

block
cart n n
  1 0 0
  2 1 0
  3 1 1
  4 0 1

ebou
  1 0 1 0
  2 0 0 1

mate
  solid
  elastic isotropic 10 .1
  density mass 1.0

end

inte

stop

